From fa5802de457c3d056cfa5d821ae8afa67726d6e7 Mon Sep 17 00:00:00 2001
From: zhongwuzw <zhongwuzw@qq.com>
Date: Thu, 19 Dec 2024 00:10:03 +0800
Subject: [PATCH] update

---
 .../ScrollView/RCTScrollViewComponentView.mm  | 26 +++++++++----------
 .../components/scrollview/ScrollEvent.h       |  3 +++
 2 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.mm b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.mm
index 2c6dd96a16e3d7..d029337fb0d40f 100644
--- a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.mm
+++ b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.mm
@@ -530,8 +530,9 @@ - (BOOL)_shouldDisableScrollInteraction
   return NO;
 }
 
-- (void)_setScrollViewMetrics:(ScrollViewEventEmitter::Metrics &)metrics
+- (ScrollViewEventEmitter::Metrics)_scrollViewMetrics
 {
+  auto metrics = ScrollViewEventEmitter::Metrics{};
   metrics.contentSize = RCTSizeFromCGSize(_scrollView.contentSize);
   metrics.contentOffset = RCTPointFromCGPoint(_scrollView.contentOffset);
   metrics.contentInset = RCTEdgeInsetsFromUIEdgeInsets(_scrollView.contentInset);
@@ -542,13 +543,18 @@ - (void)_setScrollViewMetrics:(ScrollViewEventEmitter::Metrics &)metrics
   if (_layoutMetrics.layoutDirection == LayoutDirection::RightToLeft) {
     metrics.contentOffset.x = metrics.contentSize.width - metrics.containerSize.width - metrics.contentOffset.x;
   }
+
+  return metrics;
 }
 
-- (ScrollViewEventEmitter::Metrics)_scrollViewMetrics
+- (ScrollViewEventEmitter::EndDragMetrics)_scrollViewMetricsWithVelocity:(CGPoint)velocity
+                                                  andTargetContentOffset:(CGPoint)targetContentOffset
 {
-  auto metrics = ScrollViewEventEmitter::Metrics{};
-  [self _setScrollViewMetrics:metrics];
-
+  ScrollViewEventEmitter::EndDragMetrics metrics = [self _scrollViewMetrics];
+  metrics.targetContentOffset.x = targetContentOffset.x;
+  metrics.targetContentOffset.y = targetContentOffset.y;
+  metrics.velocity.x = velocity.x;
+  metrics.velocity.y = velocity.y;
   return metrics;
 }
 
@@ -612,12 +618,7 @@ - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView
     return;
   }
 
-  auto metrics = ScrollViewEventEmitter::EndDragMetrics{};
-  [self _setScrollViewMetrics:metrics];
-  metrics.targetContentOffset.x = targetContentOffset->x;
-  metrics.targetContentOffset.y = targetContentOffset->y;
-  metrics.velocity.x = velocity.x;
-  metrics.velocity.y = velocity.y;
+  auto metrics = [self _scrollViewMetricsWithVelocity:velocity andTargetContentOffset:*targetContentOffset];
 
   static_cast<const ScrollViewEventEmitter &>(*_eventEmitter).onScrollEndDrag(metrics);
 }
@@ -786,8 +787,7 @@ - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(nullable UI
     return;
   }
 
-  auto metrics = ScrollViewEventEmitter::EndDragMetrics{};
-  [self _setScrollViewMetrics:metrics];
+  auto metrics = [self _scrollViewMetricsWithVelocity:{} andTargetContentOffset:{}];
   static_cast<const ScrollViewEventEmitter &>(*_eventEmitter).onScrollEndDrag(metrics);
 
   [self _updateStateWithContentOffset];
diff --git a/packages/react-native/ReactCommon/react/renderer/components/scrollview/ScrollEvent.h b/packages/react-native/ReactCommon/react/renderer/components/scrollview/ScrollEvent.h
index 5b41c0cc4332d1..cb55148cf5d888 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/scrollview/ScrollEvent.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/scrollview/ScrollEvent.h
@@ -43,6 +43,9 @@ struct ScrollEndDragEvent : public ScrollEvent {
 
   ScrollEndDragEvent() = default;
 
+  ScrollEndDragEvent(const ScrollEvent& scrollEvent)
+      : ScrollEvent(scrollEvent), targetContentOffset({}), velocity({}) {}
+
   folly::dynamic asDynamic() const;
 
   /*